Posts Tagged ‘coin dealer’

Chem Question……confused….?

A coin dealer, offered a rare silver coin, suspected that it might be a counterfeit nickel copy. The dealer heated the coin, which weighed 14.0 g to 100°C in boiling water and then dropped the hot coin into 28.5 g of water at T = 17.0°C in an insulated coffee-cup, and measured the rise in temperature. If the coin was really made of silver, what would the final temperature of… Continue reading

If the coin was really made of silver, what would the final temperature of the water be (in °C)?

A coin dealer, offered a rare silver coin, suspected that it might be a counterfeit nickel copy. The dealer heated the coin, which weighed 17.0 g to 100°C in boiling water and then dropped the hot coin into 25.5 g of water at T = 16.5°C in an insulated coffee-cup, and measured the rise in temperature. If the coin was really made of silver, what would the final temperature of… Continue reading

A coin dealer, offered a rare silver coin, suspected that it might be a counterfeit nickel copy. The dealer he?

A coin dealer, offered a rare silver coin, suspected that it might be a counterfeit nickel copy. The dealer heated the coin, which weighed 15.0 g to 100°C in boiling water and then dropped the hot coin into 23.0 g of water at T = 16.5°C in an insulated coffee-cup, and measured the rise in temperature. If the coin was really made of silver, what would the final temperature of… Continue reading

A coin dealer, offered a rare silver coin, suspected that it might be a counterfeit nickel copy. (HELP)?

A coin dealer, offered a rare silver coin, suspected that it might be a counterfeit nickel copy. The dealer heated the coin, which weighed 13.0 g to 100°C in boiling water and then dropped the hot coin into 29.0 g of water at T = 18.0°C in an insulated coffee-cup, and measured the rise in temperature. If the coin was really made of silver, what would the final temperature of… Continue reading