Thermal expansion, Heat & Thermal equilibrium (Problems)

A steel rod is 2.5 meter long at a temperature of 20°C. If the coefficient of linear expansion of steel is 1.2 x 10^-5 /°C, what will be the length on mm of the rod when its temperature is raised to 100°C?

(Express your result by rounding to two decimal places)

(a)  

A copper pipe is 5 meters long at a temperature of 25°C. If the coefficient of linear expansion of copper is 1.7 x 10^-5 /°C, how much longer on mm will the pipe be when its temperature is raised to 80°C?

(Express your result by rounding to two decimal places)

(a)  

A steel plate has an area of 0.5 m² at a temperature of 25°C. If the coefficient of superficial expansion of steel is 2.3 x 10^-5 /°C, how much will change the area on mm² of the plate when its temperature is raised to 100°C?

(Express your result by rounding to two decimal places)

(a)  

A rectangular aluminum plate measures 600 cm² at a temperature of 20°C. If the coefficient of linear expansion of aluminum is 2.4 x 10^-5 /°C, what will be the new area on mm² of the plate when its temperature is raised to 50°C?

(Express your result as a whole number)

(a)  

How much heat on Joules is required to raise the temperature of 2 kg of copper from 20°C to 80°C? (The specific heat capacity of copper is 386 J/kg °C.)

(Express your result as a whole number)

(a)  

Tags

NGSS.HS-PS3-1

If a block of copper requires 20874.45 J to raise the temperature from 17 °C to 98 °C, how much mass on grams has the block? (The specific heat capacity of copper is 0.385 J/g°C.)

(Express your result as a whole number)

(a)  

Tags

NGSS.MS-PS3-4

If 5,000 J of heat is added to a 1 kg aluminum block at 15°C, what will be its final temperature on Celsius? (The specific heat capacity of aluminum is 900 J/kg°C.)

(Express your result rounded to two decimal places on Celsius)

(a)  

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

A 0.5 kg block of iron is heated from 25°C to 100°C. How much heat on Joules was required? (The specific heat capacity of iron is 449 J/kg°C.)

(Express your result as a whole number)

(a)  

Tags

NGSS.HS-PS3-4

NGSS.HS-PS3-2

A 200 g piece of gold at 100°C is placed in a beaker containing 500 ml of water at 20°C. What will be the final temperature of the mixture when thermal equilibrium is reached? (The specific heat capacity of gold is 129 J/kg°C and the specific heat capacity of water is 4186 J/kg°C.)

(Express your result rounded to two decimal places on Celsius)

(a)  

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

A 50 g piece of iron at 200°C is placed in 200 g of oil at 25°C. After thermal equilibrium is reached, the final temperature of the system is measured to be 40°C. If the specific heat capacity of iron is 449 J/kg°C, what is the specific heat capacity of the oil?

(Express your result as a whole number on J/kg°C)

(a)  

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4