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Al possesses a specific heat of 0.90 J / gC. If 10 grams of Al are heated from 30 to 40 degrees C and subsequently dropped into water - with all its acquired heat transferred to 20 g of water - how many degrees does the water's temperature increase? ( Water possesses a specific heat of 4.2 J / gC )
1.1 degrees
5.0 degrees
10 degrees
90.5 degrees
none of the preceding
A 1.000 mol sample of propane, a gas used for cooking in many rural areas, was placed in a bomb calorimeter with excess oxygen and ignited. The initial temperature of the calorimeter was 25.000°C and its total heat capacity was 96.94 kJ·°C-1. The ..
Calculate the standard entropy change for the reaction 2H2(g)+ 02(g) --> 2H_2O(l) using the data from the following table: Substance Delta Hf degrees Delta Gf degrees S degrees
suppose the pressure inside a pressure cooker reaches 1.3 atm. By using the vapor-pressure table, estimate the temperature at which water will boil in this cooker
the solubility of a salt in water represents the amount of solute necessary to reach a state of equilibrium between saturated solution and undissolved
What is the change in internal energy (in J) of a system that releases 840 J of thermal energy to its surroundings and has 119 cal of work done on it? can you show work please the anser is -342
What is the pressure at a closed faucet on the second floor, 5 m above where the water enters the house. (b) How high could a faucet be placed before no water will come out of it
A solution is made by combining 500ml of .10M HF with 300ml of .15M NaF. What is the pH of the solution? (Ka=7.2e-4 for HF)
Calculate the change in entropy (deltaS) when one mole of diamond is heated from a temperature of 0 K to 400 K at a constant pressure of 1 bar. The temperature-dependent heat capacity of diamond is Cv
Iron(II) chloride (melting point 677°C) and potassium chloride (melting point 776°C) form the compounds KFeCl3 and K2FeCl4 at elevated temperatures.
a sample of vinegar of 50 ml and density of sample 1.06 gml was diluted to 500 millilitres. titration of a 50 ml of
A solution is prepared by dissolving 43.7 g cesium chloride in 60.0 g water. The volume of the solution is 63.3 mL.
The temperature of 55.6 g of a material decreases by 14.8C when it loses 3080 J of heat. What is its specific heat?
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