4.2 specific heat capacity

The specific heat of platinum is 133 J kg^-1°C^-1. How much heat(Q) is released when a 10 g piece of platinum cools from 100°C to 50°C?

• 66.5 J

• 665 J

• 0.0266 J

• 0.665 J

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

20 g of water. specific heat of water is 4200 J kg^-1°C^-1. temperature changes from 25° C to 20° C, how much heat energy (Q) moves from the water to the surroundings?

• 418 J

• 430 J

• 420 J

• 42000 J

The SI units J kg^-1°C^-1 measures

• Specific heat capacity

• Heat capacity

• temperature

• heat energy

Copper, Stainless Steel, Carbon Steel, and Zinc were all heated using the same thermal energy.  What material would be the coolest after being heated?

• Copper
• Carbon Steel
• Zinc
• Stainless Steel

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The temperature of an unknown piece of metal with a mass of 30 g changes from 25 °C to 35 °C when the metal absorbs 350 J of energy. What is the specific heat capacity of the metal?

• 1166.7 J kg^-1°C^-1

• -1.17 J kg^-1°C^-1

• -1166.7 J kg^-1°C^-1

• -0.857 J kg^-1°C^-1

Which material heats up slowest?

• Aluminium

• Concrete

• Diamond

• Glass

• Water

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which material heats up quickest?

• Aluminium

• Concrete

• Diamond

• Glass

• Water

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is the equation for specific heat capacity?

• $Q=mc\Delta\theta$

• $Q=\frac{mc}{\Delta\theta}$

• $Q=\frac{\Delta\theta}{mc}$

• $Q=\frac{c\Delta\theta}{m}$

• $Q=m\Delta cT$

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

A piece of silver is heated to 87.36 ^oC and dumped into a calorimeter containing 65.86 g of water at a temperature of 24.03 ^oC. Calculate the mass of this silver sample if the final temperature of the silver and water are 28.69 ^oC.

(c_silver = 235 J kg^-1oC^-1)

(c_water = 4200 J kg^-1oC^-1)

• 0.0123 kg

• 0.0935 kg

• 93.500 kg

• 14819 kg

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

If I heat up 2 pans of water one has 100 mL in it and one has 1000mL. Which one heats up the fastest?

• 100 mL
• 1000 mL
• They both heat up at the same speed
• They cool down.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4