Advertisements
Advertisements
प्रश्न
The value of ∆H for cooling 2 moles of an ideal monatomic gas from 125°C to 25°C at constant pressure will be `["given C"_"P" = 5/2"R"]`
विकल्प
– 250 R
– 500 R
500 R
+ 250 R
उत्तर
– 500 R
APPEARS IN
संबंधित प्रश्न
The amount of heat exchanged with the surrounding at constant pressure is given by the quantity
The heat of formation of CO and CO2 are – 26.4 kCal and – 94 kCal, respectively. Heat of combustion of carbon monoxide will be
If one mole of ammonia and one mole of hydrogen chloride are mixed in a closed container to form ammonium chloride gas, then
When 15.68 litres of a gas mixture of methane and propane are fully combusted at 0°C and 1 atmosphere, 32 litres of oxygen at the same temperature and pressure are consumed. The amount of heat released from this combustion in kJ is (∆HC(CH4) = – 890 kJ mol−1 and ∆HC(C3H8) = – 2220 kJ mol−1)
Predict the feasibility of a reaction when both ΔH and ΔS positive.
Predict the feasibility of a reaction when ΔH decreases but ΔS increases.
Define the calorific value of food.
What is the unit of calorific value?
Explain how heat absorbed at constant volume is measured using a bomb calorimeter with a neat diagram.
Calculate the standard heat of formation of propane, if its heat of combustion is −2220.2 kJ mol−1 the heats of formation of \[\ce{CO2_{(g)}}\] and \[\ce{H2O_{(l)}}\] are −393.5 and −285.8 kJ mol−1 respectively.
