Question

1. How much heat is gained by nickel when 29.2 g of nickel is warmed from 18.3°C to 69.6°C? The specific heat of nickel is 0.443 J/(g · °C

Answer 1

To find the heat gained by nickel, use the specific heat formula with the given mass, specific heat capacity of nickel, and temperature change to calculate that the nickel gains 668.2032 joules of heat.

Step-by-step explanation:

The amount of heat gained by nickel when 29.2 g of nickel is warmed from 18.3°C to 69.6°C can be calculated using the specific heat formula: q = m × c × ΔT, where q is the heat gained, m is the mass of the nickel, c is the specific heat capacity, and ΔT is the change in temperature. Substituting in the given values for the specific heat of nickel (0.443 J/(g · °C)), the mass of the nickel (29.2 g), and the temperature change (69.6°C - 18.3°C), we get q = 29.2 g × 0.443 J/(g · °C) × (69.6°C - 18.3°C).

Calculating this we find:

q = 29.2 g × 0.443 J/(g · °C) × 51.3 °C

q = 668.2032 J

The nickel gains 668.2032 joules of heat.

Answer 2

THE HEAT REQUIRED TO RAISE 29.2 G OF NICKEL BY 51.3 °C IS 663.60 J

Step-by-step explanation:

Mass of nickel = 29.2 g

Temperature change = 69.6 °C - 18.3°C = 51.3 °C

Specific heat of nickel = 0.443 J/g °C

Heat = unknown

The heat of reaction of nickel is the amount of heat needed to raide a unit mass of nickel by 1 °C

Mathematically.

heat = mass * specific heat * change in temperature

Heat = m C ΔT

Heat = 29.2 * 0.443 * 51.3

Heat = 663.596 J

The heat needed to raise 29.2 g of nickel by 51.3 °C is approximately 663.60 J