For q= mcΔT : identify each variables by name.
| Stavka koja se može prevući | arrow_right_alt | Odgovarajuća stavka |
|---|---|---|
m | arrow_right_alt | heat |
c | arrow_right_alt | mass |
ΔT | arrow_right_alt | specific heat |
q | arrow_right_alt | change in temperature |
For q= mcΔT : identify the units associated with each variable.
| Stavka koja se može prevući | arrow_right_alt | Odgovarajuća stavka |
|---|---|---|
m | arrow_right_alt | J |
c | arrow_right_alt | g |
ΔT | arrow_right_alt | J/(g°C) |
q | arrow_right_alt | °C |
Heat is not the same as temperature, yet they are related. Explain how they differ from each other.
Gold has a specific heat of 0.129 J/(g×°C). How many joules of heat energy are required to raise the temperature of 15 grams of gold from 22 °C to 85°C? Round to the nearest whole number
An unknown substance with a mass of 100 grams absorbs 1000 J while undergoing a temperature increase of 15 °C. What is the specific heat of the substance? Round to the nearest hundrendth
If the temperature of 34.4 g of ethanol increases from 25 °C to 78.8 °C, how much heat has been absorbed by the ethanol? The specific heat of ethanol is 2.44 J/(g×°C). Round to the nearest whole number.
Graphite has a specific heat of 0.709 J/(g×°C). If a 25 gram piece of graphite is cooled from 35 °C to 18 °C, how much energy was lost by the graphite?. Round to the nearest whole number
Copper has a specific heat of 0.385 J/(g×°C). A piece of copper absorbs 5000 J of energy and undergoes a temperature change from 100 °C to 200 °C. What is the mass of the piece of copper? Round to the nearest tenth.
45 grams of an unknown substance undergoes a temperature increase of 38 °C after absorbing 4172.4 Joules. What is the specific heat of the substance? Round to the nearest hundredth
A 40 g sample of water absorbs 500 Joules of energy. How much did the water temperature change? The
specific heat of water (liquid) is 4.18 J/(g×°C). Round to the nearest whole whole number