What happens to the specific enthalpy as you move to the right or left along a constant temperature line?
A) The specific enthalpy increases as you move to the left.
B) The specific enthalpy increases as you move to the right.
C) The specific enthalpy remains the same.
D) The specific enthalpy is not related in any way to movement along the constant pressure line.
B
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PROBLEM 2.18 The brass tube AB (E = 15 ? 106 psi) has a cross-sectional area of 0.22 in2 and is fitted with a plug at A. The tube is attached at B to a rigid plate that is itself attached at C to the bottom of an aluminum cylinder (E = 10.4 ? 106 psi) with a cross-sectional area of 0.40 in2. The cylinder is then hung from a support at D. In order to close the cylinder, the plug must move down through in. Determine the force P that must be applied to the cylinder.
The SALT II Treaty between the Soviet Union and the United States died in the Senate when the Soviets
A. refused to sign the Helsinki accords. B. cracked down on Soviet dissidents. C. halted the immigration of Soviet Jews to Israel. D. helped Muslim fundamentalists to overthrow the shah of Iran. E. invaded Afghanistan.
Transistor-transistor logic (TTL) uses the bipolar transistor as its main circuit element
Indicate whether the statement is true or false
Two resistors in series, R1 and R2, have a total resistance of 1,600 ohms. The resistance of R2 is 560 ohms less than twice R1. Find the resistance of R1 and R2.
Fill in the blank(s) with the appropriate word(s).