1.
In an isochoric process, the internal energy of a system decreases by 50 J. What is the heat exchange?
2.
What effect do thermal variations in volume have on a body?
3.
Two thermometers are constructed in the same way except that one has a spherical bulb and the other an elongated cylindrical bulb. Which of the two will respond quickly to temperature changes?
4.
When the state is being changes from gas to liquid through the process of condensation, the temperature
5.
When potassium is added to water, it is seen that the lower region becomes warm first and becomes less dense. It then moves up and the more dense cold water comes down and the process goes on. What is the process taking place?
6.
Why is the roof of buildings painted white
7.
Calorie is defined as the amount of heat required to raise the temperature of 1g of water by 1°C and it is defined under which of the following conditions?
8.
The temperature of a body can be negative on the Kelvin scale.
9.
A pure substance would freeze or solidify at its
10.
Specific heat of materials is expressed in terms of __________
11.
Which of the following is an effective coolant?
12.
The heat capacity of a material defined as ___________
13.
540g of ice at 0°C is mixed with 540g of water at 80°C. What is the final temperature of the mixture?
14.
The temperature at which plastics begin to become softer and defer under a load is known as _________
15.
When one end of the rod is heated, the molecules at the hot end vibrate with higher amplitude and transmit the heat from one particle to the adjacent particle and so on. What is the process?
16.
What happens when a material is heated?
18.
In an experiment, 100 g of liquid requires 12600 J of thermal energy to raise it from 30 °C to 60 °C, the thermal capacity of 100 g of water is
19.
The ability of a body to withstand sudden and severe temperature changes is known as________
20.
On a hilly region, water boils at 95°C. What is the temperature expressed in Fahrenheit?
22.
Compared to burn due to air at 100°C, a burn due to steam at 100°C is _______
23.
A milkman boils the milk before distributing it in the pots. He raises the temperature of the milk from 10 °C to 130 °C with the thermal energy of 120000 J. If the mass of the milk is 25 kg, the specific heat capacity of the milk would be
25.
A piece of blue glass heated to a high temperature and a piece of red glass at room temperature, are taken inside a room that is dimly lit, then ___________
