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For the following processes, calculate the change in internal energy of the system and determine whether the process is endothermic or exothermic: (a) A balloon is cooled by removing 0.655 kj of heat. It shrinks on cooling, and the atmosphere does 382 j of work on the balloon. (b) A 100.0-g bar of gold is heated from 25°C to 50°C during which it absorbs 322 j of heat. Assume the volume of the gold bar remains constant. (c) the surroundings do 1.44 kj of work compressing gas in a perfectly insulated cylinder.
Provide a detailed mechanism to account for the conversion of D-fructose into two equivalents of pyruvaldehyde. (Hint: glyceraldehyde will be an intermediate.)
calculate the change in entropy when 25KJ of energy is transferred reversibly and isothermally as heat to a large block of iron at (a) 0C and (b) 100c.
When treated with nitric acid sugar M forms an optically active diacid, N. Show the structures all compound J-N. Explain your reasoning. If there is a structure of which you are unable to determine the exact configuration, explain why it is imposs..
How would I draw a structure consisting of SiO4 units arranged in a chain with each unit sharing two of its oxygen atoms with neighboring SiO4 units. What is this silicate structure named
Calculate a lattice energy for (in kilojoules per mole) using the following information.
how many joules of heat are needed to completely vaporize 24.40 grams of water at its boiling point?given deltahvap
How many atoms of iron would be needed to react completely with 36 molecules of oxygen. How many molecules of oxygen would be needed to react completely 16 atoms of iron
Predict if the following conditions would result in the formation of a precipitate: (A) 0.0025 M Fe^3+ at pH 6.00 (B) 0.0025M Ba^2+ and a 1.25* 10^-4 M solution of sodium sulfate
What are the similarities between distillation and sublimation. When would you choose one over the other.
Which value is closest to the pOH of a 0.30M solution of the weak base methylamine (CH_3_NH_2_). The Ka for the acid form of methylamine (CH_3_NH_3_+) is 2.27E-11.
420 g of butane reacts with 1510 g of oxygen to produce 1390 g of carbon dioxide and 652 g of water.What is wrong with this description?
How much PV work is done in kilojoules and what is the value of ^E in kilojoules for the reaction of 6.50g of acetylene at atmospheric pressure if the volume change is -2.80L
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