What is the heat needed to heat 150 g of water from 10.0$^{\circ}$C to 100$^{\circ}$C? (specific heat of water = 4186 J/kg $^{\circ}$C)

Question

Quizplus · Accepted Answer

Firstly, we need to find the mass of water in kg,

Mass = 150 g = 0.15 kg

Now, we can use the formula:

Q = mcΔT

where Q is the heat energy required, m is the mass of the substance, c is the specific heat capacity of the substance, and ΔT is the change in temperature.

Substituting the given values, we get:

Q = (0.15 kg)(4186 J/kg°C)(100°C - 10°C)

Q = 56,535 J = 56.5 kJ (rounded to one decimal place)

Therefore, the answer is choice C) 56.5 kJ.

What Is the Heat Needed to Heat 150 G of Water