Chemistry, 09.11.2020 19:50, alexkrol30083
True or False? If friction didn’t exist, an object in motion would stay in motion forever.
Answers: 3
Chemistry, 22.06.2019 14:30, Dreynolds1667
100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)
Answers: 1
Chemistry, 22.06.2019 17:10, hahahwha
Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]
Answers: 2
True or False? If friction didn’t exist, an object in motion would stay in motion forever....
Mathematics, 15.04.2021 23:50
Mathematics, 15.04.2021 23:50
History, 15.04.2021 23:50
Mathematics, 15.04.2021 23:50
Mathematics, 15.04.2021 23:50
History, 15.04.2021 23:50
Mathematics, 15.04.2021 23:50
Mathematics, 15.04.2021 23:50