In a closed room, you turn the ceiling fan on to cool yourself down as you complete an online exam. Over time, will the temperature in the room increase/decrease/stay the same? Support your answer using explanations/equations as necessary.

In a closed combustion vessel, propane (C3H8) and air are mixed at equivalence ratio of 1.11, temperature of 298 K, and pressure of 1 bar. The mixture is burned to produce solely CO2, CO, H2O, and N2. The heat rejected from the vessel is 820 MJ/kmol of fuel. What are the final temperature and final pressure of the mixture? Since neither O2 nor H2 is present in the burned gas, dissociation can be neglected.

Consider the AD-AS model for a closed economy. If today’s income decreases, the AD curve will ; the SAS curve will ; and the LAS curve will . Note: For each of the above blanks, fill in one of the following three choices: A. move to the right; B. move to the left; C. stay where it was.

Consider the general equilibrium effects of monetary policy in a closed economy. If M decreases, the IS curve will ; the FE curve will ; and the LM curve will ; and r* will and y* will . Note: For each of the above blanks, fill in one of the following three choices: A. move to the right; B. move to the left; C. stay; D. increase; E. decrease.

Graphite solid is placed in a closed chamber of fixed volume with an initial oxygen pressure of 200 atm and heated to T=1300°C. Assume the graphite is not completely consumed during the subsequent reaction. (a) If the total pressure is held constant, what ratio of carbon dioxide to carbon monoxide is produced by any reactions that occur? (b) If the reaction is allowed to proceed from the initial conditions without allowing any gas in or out, would the chamber pressure increase, decrease, or remain the same? (c) If the chamber is perfectly insulated, would the chamber temperature increase, decrease, or remain the same? (d) How – if at all – would your answers to the previous parts change if all the graphite is consumed?

C_graphite + 1/2O_2(g) à CO_(g) ∆G₁° = -111,700 – 87.65 T (J/mol)

C_graphite + O_2(g) à CO_2(g) ∆G₂° = -394,100 – 0.84 T (J/mol)

The following macroeconomic data corresponds to a closed economy (all values are in € billion):

Private Consumption 35,000
Public Spending 12,500
Taxes 10,000
Gross Domestic Product 50,000
Moreover, the investment function is estimated to be the following: I=4,500 -200r

1) Write down the GDP identity [Y=C+I+G] stating the value in € of each component. Explain your answer.

2) Calculate Total Savings, Total Investment, Private Savings, Public Savings and the equilibrium interest rate.

3) Suppose that the government increases its level of expenditure to 14,000. What happens to private savings, public savings and total savings? Which new values do they take? What are the new equilibrium values for investment and the interest rate? Explain your answer and comment on the results

calculate the equilibrium pressure of CO2 in a closed 1 L vessel that contains each of the following samples. Assume that ΔH∘ and ΔS∘ are independent of temperature:

15 g of MgCO3 and 1.0 g of MgO at 25 ∘C

15 g of MgCO3 and 1.0 g of MgO at -40 ∘C

30 g of MgCO3 and 1.0 g of MgO at -40 ∘C

In 30% ethanol, a 440 bp closed circular A-form DNA is in a relaxed form (no supercoil). What are the Lk, Tw and Wr values? (Please elaborate)

By transferring the above DNA from 30% ethanol solution to water solution, the structure of this DNA molecule converts from A-form to B-form helix (10 bp/turn) without breaking its backbone. What would the Lk, Tw and Wr be? (Please elaborate)

Consider the following information on macroeconomic variables in a closed economy of Winterland (all figures are in billion $):

C=160 + 0.6 YD

I=150

G=150

T=100

1. Identify the exogenous and endogenous variables in this model.
2. Obtain the equilibrium level of GDP?
3. Using the equilibrium GDP in b, obtain the equilibrium level of consumption spending.
4. How much is the savinglevel at the equilibrium?
5. Calculate the multiplier?
6. If government purchase of goods and services (G) increase by $50 billion, how much the equilibrium level of GDP (Y) will change?
7. If government taxes (T) increase by $50 billion, how much the equilibrium level of GDP (Y) will change?