Compute the final temperature and the entropy change

Reference no: EM13192868

Two blocks of ice, one at -30 C and another at -50 C, are brought into thermal contact within a perfect thermos and allowed to reach thermal equilibrium. If the colder block orginially weighed 200g and the warmer one 100g. calculate the final temperature and the entropy change of the universe for this process

Reference no: EM13192868

Questions Cloud

State what was the initial temperature in c : the temperature unknown. When the volume changes to 1.68L the temperature is found to be -220oC. What was the initial temperature in C?

State what is the reaction quotient q : If during the course of the reaction, the vessel is found to contain 9.75mol of C, 15.0mol of H2O, 3.10mol of CO, and 7.80mol of H2, what is the reaction quotient Q?

Define and measure a more reasonable absorbance : When making up an unknown solution for absorption measurements, a good plain is to make up a solution that is rather on the concentrated side, measure its absorbance and compare it to the absorbance range of your standard curve. If it is higher th..

Compute number of moles of h2o present at equilibrium : Some of the original solid remained and total pressure in container was 7.76 atms when equilibrium is reached. Calculate number of moles of H2O(g) present at equilibrium How many grams of original solid remain

Compute the final temperature and the entropy change : If the colder block orginially weighed 200g and the warmer one 100g. calculate the final temperature and the entropy change of the universe for this process

Compute the ka for the acid : Dissolved in water to produce a 0.0170 M solution. The pH of the resulting solution is 2.33. Calculate the Ka for the acid.

Compute the moles of naoh needed for the reaction : needed to titrate 45.25 mL of NaOH. Calculate the moles of NaOH needed for the reaction. Calculate the Molarity of the NaOH solution

Define the temperature of the resulting mixture : A 47.5 g sample of metal was heated to 100 degrees C and then poured into 100 g of water at 24.0 degrees C. The temperature of the resulting mixture was 28.0 degrees C.

Compute the activity of the enzyme at vmax : The concentration of alkaline phosphate in the stock solution used in the experiment was .25mg protein/mL. Calculate the activity of the enzyme at Vmax as umole substrate hydrolyzed per minute per mg of enzyme protein.

User Account

All Pages