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  4. The specific heat c of a solid at low temperature shows temperature dependence according to the relation c = DT3 where D is a constant and T is the temperature in kelvin. A piece of this solid of mass m kg is taken and its temperature is raised from 20 K to 30 K. The amount of the heat required in the process in energy units is

Q. The specific heat of a solid at low temperature shows temperature dependence according to the relation where is a constant and is the temperature in kelvin. A piece of this solid of mass m kg is taken and its temperature is raised from to . The amount of the heat required in the process in energy units is

WBJEE WBJEE 2013Kinetic Theory Report Error

Solution:

Amount of heat required,

Given,

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5. In a process, temperature and volume of one mole of an ideal monoatomic gas are varied according to the relation , where is a constant. In this process the temperature of the gas is incresed by . The amount of heat absorbed by gas is (R is gas constant) :

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