Which statement is true of the temperature of the two substances when they reach thermal equilibrium? (Assume no heat loss other than the thermal transfer between the substances.) Which statement is true of the temperature of the two substances when they reach thermal equilibrium? (Assume no heat loss other than the thermal transfer between the substances.)

The question is incomplete. Here is the complete question.

Two substances A and B, of equal mass but at different temperatures come into thermal contact. The specific heat capacity of substance A is twice the specific heat capacity of substance B. Which statement is true of the temperature of the two substances when they reach themal equilibrium?

a. The final temperature of both substances is closer to the initial temperature of substance A than the initial temperature of substance B.

b. The final temperature of both substances is closer to the initial temperature of substance B than the initial temperature of substance A.

c. The final temperature of both substances is eaxctly midway between the initial temperatures of substance A and substance B.

d. The final temperature of substance B is greater than the final temperature of substance A.

a. The final temperature of both substances is closer to the intital temperature of substance A than the initial temperature of substance B.

Explanation: Specific Heat Capacity, in physics, is the quantity of heat necessary to increase 1 Kelvin per 1 kilogram of substance, i.e., each substance has its own specific heat capacity.

Substances with different temperatures when in contact with each other reach the same final temperature.

A's specific heat capacity is twice as big as B's specific capacity. This means it is necessary twice as much heat for B to reach its final temperature. Therefore, final temperature is closer to the initial temperature of substance A.

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.