Question

Two liquids A and B are at temperatures of 75⁰C and 15⁰C. Their masses are in the ratio of 2 : 3 and their specific heats in the ratio 3 : 4. What is the resulting temperature ?

• A. 90⁰C
• B. 70⁰C
• C. 35⁰C
• D. 60⁰C

Answer 1

Answer: (C)

35⁰C

Answer 2

T_mix. = $\frac{m_{1}S_{1}T_{1} + m_{2}S_{2}T_{2}}{m_{1}S_{1} + m_{2}S_{2}}$