1.What is the volume of a lead ball at 35.00°C if the ball's volume at 64.00°C is 39.00 cm3? Give your answer to four si
Posted: Thu Apr 28, 2022 9:24 am
1.What is the volume of a lead ball at 35.00°C if the
ball's volume at 64.00°C is 39.00 cm3?
Give your answer to four significant figures. The linear expansion
coefficient of lead is 29.00 × 10-6 /C°.
2.A small electric immersion heater is used to
heat 69 g of water for a cup of instant coffee. The
heater is labeled “120 watts” (it converts electrical energy
to thermal energy at this rate). Calculate the time required to
bring all this water from 19°C to 100°C, ignoring any heat
losses. (The specific heat of water is 4186 J/kg·K.)
ball's volume at 64.00°C is 39.00 cm3?
Give your answer to four significant figures. The linear expansion
coefficient of lead is 29.00 × 10-6 /C°.
2.A small electric immersion heater is used to
heat 69 g of water for a cup of instant coffee. The
heater is labeled “120 watts” (it converts electrical energy
to thermal energy at this rate). Calculate the time required to
bring all this water from 19°C to 100°C, ignoring any heat
losses. (The specific heat of water is 4186 J/kg·K.)