Question

If the temperature of a substance increases, what can you conclude about the value of q? A. It must be less than 1. B. It must be negative. C. It must be positive. D. It must be greater than 1. Please help! I need to answer this question right to pass!

Answer 1

q=m×c ×delta T
m is mass so always positive
c is a constant so again positive
delta T would be positive since the temperature increases
which concludes q should be positive