Question

How much heat is required to raise the temperature of 36.2 g of water from −25 °C to 185 °C?

A) 364.2 J
B) 364,200 J
C) 72,840 J
D) 72.84 J

Answer 1

The heat required can be calculated using the formula: q = m × c × ΔT. The heat required to raise the temperature of 36.2 g of water from −25 °C to 185 °C is approximately 364,200 J.

Step-by-step explanation:

The heat required to raise the temperature of water can be calculated using the formula:

q = m × c × ΔT

Where:

• q is the heat (in Joules)
• m is the mass of water (in grams)
• c is the specific heat of water (4.184 J/g °C)
• ΔT is the change in temperature (in °C)

Let's calculate the heat required:

q = (36.2 g) × (4.184 J/g °C) × (185 °C - (-25 °C))

q = 364203.12 J

The answer is approximately 364,200 J (option B).