It requires 350 joules to raise a certain amount of a substance from 10.0°c to 30.0°c. the specific heat of the substance is 1.2 j/g°c. what is the mass of the substance?

The correct answer to the question is : 14.58 gram

EXPLANATION :

As per the question, the amount of heat given to the substance dQ = 350 J.

The initial temperature is given as  T = 10 degree celsius.

The final temperature of the substance  T' = 30 degree celsius.

Hence, change in temperature dT = T' - T

                                                         = 30 - 10 degree celsius

                                                         = 20 degree celsius.

The specific heat of the substance is given as c =

The mass of the substance is calculated as -

                                ⇒

                                                  [ans]

The answer here would be B.