Thermal Equilibrium — MCQ Practice

Two bodies, A and B, are in thermal contact. Body A is at $50^{\circ}\text{C}$ and body B is at $20^{\circ}\text{C}$. Which of the following statements is true regarding the heat transfer between them?

Which of the following statements correctly describes the Zeroth Law of Thermodynamics?

A $2,\text{kg}$ block of copper at $100^{\circ}\text{C}$ is placed in an insulated container with $4,\text{kg}$ of water at $20^{\circ}\text{C}$. Assuming no heat loss to the surroundings, what is the final state of the system when thermal equilibrium is reached? (Specific heat of copper $c_{Cu} = 390,\text{J/kg}\cdot\text{K}$, specific heat of water $c_W = 4200,\text{J/kg}\cdot\text{K}$)

Which of the following is an intensive property that becomes uniform throughout a system at thermal equilibrium?

A hot object is placed in a vacuum chamber. Will it eventually reach thermal equilibrium with its surroundings?

Two systems, X and Y, are initially at different temperatures and are brought into thermal contact. After some time, they reach thermal equilibrium. Which of the following statements is INCORRECT?