198k views
4 votes
A 150.0g sample of water at 30.00 degree Celsius is warmed to 63.50 degree Celsius. How much energy was required to warm the sample of water?

A.39810J
B.71100J
C.21000J
D.11000J

User Howettl
by
7.3k points

1 Answer

4 votes

Final answer:

Using the specific heat capacity of water and the formula for thermal energy transfer, the energy required to warm a 150.0g sample of water from 30.00°C to 63.50°C is found to be 21000 J.

Step-by-step explanation:

To determine how much energy was required to warm the sample of water from 30.00 degrees Celsius to 63.50 degrees Celsius, we can use the formula for thermal energy transfer (Q):

Q = mcΔT

where:

  • Q is the thermal energy transfer
  • m is the mass of the water
  • c is the specific heat capacity of water
  • ΔT is the change in temperature


The specific heatof water (c) is 4.184 J/g°C

. The mass of the water (m) is 150.0 g, and the temperature change (ΔT) is 33.50°C (63.50°C - 30.00°C).

Using the formula:

Q = (150.0 g)(4.184 J/g°C)(33.50°C)

Q = 21000 J

Therefore, the energy required to warm the sample of water is 21000 J.

User Schorsch
by
8.1k points