Is the heat supplied to a system always equal to the increase in its internal energy?

Assertion: The heat supplied to a system is always equal to the increase in its internal energy. Reason: When a system changes from one thermal equilibrium to another some heat is absorbed by it.

Assertion: The heat supplied to a system is always equal to the increase in its internal energy Reason: when a system changes from one thermal equilibrium to another, some heat is absorbed by it.

Assertion : First law of thermodynamics does not forbid flow of heat from lower temperature to higher temperature. Reason : Heat supplied to a system always equal to the increase in its internal energy.

Assertion : First law of thermodynamics does not forbid flow of heat from lower temperature to higher temperature. Reason : Heat supplied to a system always equal to the increase in its internal energy.

When is the heat supplied to a system equal to the increase in its internal energy?

When is the heat supplied to a system equal to the increase in its internal energy?

Show that the heat absorbed at constant volume is equal to the increase in the internal energy of the system, whereas that at constant pressure is equal to the increase in the enthalpy of the system.

The molar heat capacity for an ideal monatomic gas is 3R.If dQ is the heat supplied to the gas and dU is the change in its internal energy then for the process the ratio of work done by the gas and heat supplied is equal to

Assuming the system performs only pressure-volume work, show that heat absorbed by a closed system at constant volume is equal to the increase in its internal energy.