Advertisements
Advertisements
प्रश्न
Express -400C on the Fahrenheit scale.
उत्तर
F = `9/5` C + 32
= `9/5` x (-40) + 32 = -40°F
⇒ -40°C = -40°F
APPEARS IN
संबंधित प्रश्न
Name the law on which principle of Calorimetry is based
1300 J of heat energy is supplied to raise the temperature of 6.5 kg of lead from 20° C to 40°C. Calculate the specific heat capacity of lead.
Describe an experiment to show that there is absorption of heat energy when the ice melts.
10g of ice at 0℃ absorbs 5460 J of heat energy to melt and change to water at 50℃. Calculate the specific latent heat of fusion of ice. Specific heat capacity of water is 4200 J kg-1 K-1.
Give scientific reasons for the following:
Sand mixed with salt is often spread over the icy roads in winter.
1 kg of steam condenses to water at 100°C. How many joules of heat energy is liberated?
Calculate the heat energy that will be released when 5.0 kg of steam at 100°C condenses to form water at 100°C. Express your answer in S.I. unit. (Specific latent heat of vaporization of steam is 2268 kj/kg.)
The process of converting a substance from solid state to gaseous state is called condensation.
The device which is used to measure the heat capacity of the liquid is ______.
