Advertisements
Advertisements
Question
What is the specific heat capacity of boiling water?
Solution
The specific heat capacity of boiling water is 0.46 cal/g-oC or 1926 J/kg-K.
APPEARS IN
RELATED QUESTIONS
A geyser heats water flowing at the rate of 3.0 litres per minute from 27 °C to 77 °C. If the geyser operates on a gas burner, what is the rate of consumption of the fuel if its heat of combustion is 4.0 × 104 J/g?
The coolant in a chemical or a nuclear plant (i.e., the liquid used to prevent the different parts of a plant from getting too hot) should have high specific heat.
50 g of metal piece at 27°C requires 2400 J of heat energy so as to attain a temperature of 327°C . Calculate the specific heat capacity of the metal.
A solid metal weighing 150 g melts at its melting point of 800 °C by providing heat at the rate of 100 W. The time taken for it to completely melt at the same temperature is 4 min. What is the specific latent heat of fusion of the metal?
State S.I. unit of specific heat capacity.
What do you mean by the following statement?
The heat capacity of a body is 50 JK-1?
Give one example where high specific heat capacity of water is used as cooling purposes?
Describe a method to determine the specific heat capacity of a solid, like a piece of copper ?
In an experiment to determine the specific heat capacity of a solid following operations were
made:
Mass of calorimeter + stirrer = x kg
Mass of water = y kg
Initial temperature of water t1℃
Mass of solid = z kg
Temperature of solid = t2 ℃
Temperature of mixture = t ℃
Specific heat capacity of calorimeter and water are c1 and c2 respectively. Express the specific
heat capacity c of the solid in terms of the above data.
A heater of power P watt raises the temperature of m kg of a liquid by Δt K in time t s. Express
the specific heat capacity of liquid in terms of above data.
The S.I. unit of specific heat capacity is ______.
Name three fossil fuels that emit carbon dioxide into the atmosphere ?
How will rise in sea level affect population in coastal countries?
How will global warming disturb the ecological balance?
The substances like water which have ........... Heat capacity warm up more slowly than substances like iron which have .......... heat capacity.
State, with reason, which of the two, boiling water or steam both at 100°C will produce more severe burns.
What are the factors on which the quantity of heat given to a body depends?
Explain, why water is considered as best liquid for quenching thirst?
Give two reasons as to why copper is preferred over other metals for making calorimeters.
Write an expression for the heat energy liberated by a hot body.
1 kg of water freezes to form ice at 0°C. What amount of heat is withdrawn?
Why are athletes advised to put on extra clothes after competing on event?
Describe a method to determine the specific heat capacity of a solid (say, a piece of copper).
Will the value of specific heat’capacity and specific latent heat of a substance change if the scale is °F instead of °C?
A substance is in the form of a solid at 0°C. The amount of heat added to this substance and the temperature of the substance are plotted on the following graph:
If the specific heat capacity of the solid substance is 500 J/kg °G, find from the graph, the mass of the substance.
63.2 g of copper at 50°C can just melt 3.8g of ice. If the specific latent heat of ice is 336 J/g, find the specific heat capacity of copper.
Derive an expression for finding out the specific heat capacity of a body (solid) from the readings of an experiment given below:
(i) Mass of empty calorimeter (with stirrer) = m1 gm
(ii) Mass of the metal piece = M gm
(iii) Mass of colorimeter and water = m2 gm
(iv) Initial temperature and water = t1°C
(v) Temperature of hot solid (metal piece) = t2 °C
(vi) Final temperature of the mixture = t°C
(vii) Specific heat of calorimeter = 0.4 J gm / °C
Define specific heat capacity.
For a gas, `"R"/"C"_"v"=0.4`, where R Is universal gas constant and Cv is the molar specific heat at constant volume. The gas is made up of molecules, which are ______
Which of the substances P, Q, or R has the lowest specific heat? The temperature v/s time graph is shown ______.
Two metals A and B have specific heat capacities in the ratio 2:3. If they are supplied same amount of heat then
If specific heat capacity of metal A is 0.26 Jg-1 0C-1 then calculate the specific heat capacity of metal B.
Water has the lowest specific heat capacity.
Match the following
| 1. | Specific heat capacity | a. | Dewar bottle |
| 2. | Calorimeter | b. | Lavoisier and Simon |
| 3. | Vacuum flask | c. | J Kg-1 K-1 |
| 4. | Ice – calorimeter | d. | Heat capacity |
A geyser heats water flowing at a rate of 2.0 kg per minute from 30°C to 70°C. If the geyser operates on a gas burner, the rate of combustion of fuel will be ______ g min-1.
[Heat of combustion = 8 × 103 Jg-1 Specific heat of water = 4.2 Jg-1°C-1]
Specific heat capacity of a substance X is 1900 Jkg-1°C-1 means ______.
Give one example where high specific heat capacity of water is used as heat reservoir.
