Question

A 3-kg object experiences a temperature rise of 50°C when 1000 joules of heat are added. Using the same substance, which situation would require the same amount of heat to be added?

A) A 6-kg mass experiences a temperature rise of 50°C.


B) A 3-kg mass experiences a temperature rise of 50°C.


C) A 6-kg mass experiences a temperature rise of 100°C.
Eliminate

D) A 3-kg mass experiences a temperature rise of 100°C.

Answer 1

The answer is b, because I just answered this question

Answer 2

Step-by-step explanation:

Answer:

option (B)

Step-by-step explanation:

mass of substance, m = 3 kg

Rise in temperature, ΔT = 50°C

Heat added, Q = 1000 J

Let c be the specific heat of the substance.

By using the formula of heat

Q = m x c x ΔT

1000 = 3 x c x 50

c = 6.67 J/kg°C

A)

m = 6 kg, c = 6.67 J/kg°C, ΔT = 50°C

Q = m x c x ΔT = 6 x 6.67 x 50 = 2000 J

B)

m = 3 kg, c = 6.67 J/kg°C, ΔT = 50°C

Q = m x c x ΔT = 3 x 6.67 x 50 = 1000 J

Thus, option (B) is correct.