Coin Mercantile Exchange, Invest and Collect Rare Modern World Coins

Posts Tagged ‘degc’

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

1 comment - What do you think?  Posted by admin - September 9, 2010 at 1:03 pm

Categories: Trivia   Tags: boiling water, celcius, coffee cup, coin dealer, degc, Nickel, rare silver, Silver Coin, specific heat

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

1 comment - What do you think?  Posted by admin - January 12, 2010 at 8:15 am

Categories: Trivia   Tags: boiling water, coffee cup, coin dealer, degc, fyi, Nickel, rare silver, Silver Coin