JEE Main 2019 (Online) 11th January Evening Slot | Heat and Thermodynamics Question 301 | Physics

A thermometer graduated according to a linear scale reads a value x₀ when in contact with boiling water, and x₀/3 when in contact with ice. What is the temperature of an object in ^oC, if this thermometer in the contact with the object reads x₀/2 ?

JEE Main 2019 (Online) 11th January Evening Slot

MCQ (Single Correct Answer)

-1

In a process, temperature and volume of one mole of an ideal monoatomic gas are varied according to the relation VT = K, where K is a constant. In this process the temperature of the gas is increased by $$\Delta $$T. The amount of heat absorbed by gas is (R is gas constant) :

$${1 \over 2}$$ KR$$\Delta $$T

$${1 \over 2}$$ R$$\Delta $$T

$${3 \over 2}$$ R$$\Delta $$T

$${2K \over 3}$$ $$\Delta $$T

JEE Main 2019 (Online) 11th January Morning Slot

MCQ (Single Correct Answer)

-1

A gas mixture consists of 3 moles of oxygen and 5 moles of argon at temperature T. considering only translational and rotational modes, the total internal energy of the system is :

12 RT

20 RT

4 RT

15 RT

JEE Main 2019 (Online) 11th January Morning Slot

MCQ (Single Correct Answer)

-1

A rigid diatomic ideal gas undergoes an adiabatic process at room temperature. The relation between temperature and volume for this process is TV^x = constant, then x is :

$${5 \over 3}$$

$${2 \over 5}$$

$${3 \over 5}$$

$${2 \over 3}$$

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