Related Questions

Read the following passage carefully and then choose the right word to complete the sentence that follows. Rockets are very expensive as it can be used only once. Appled scientists have therefore develped a reusable space craft called a space shuttle which takes off like a rocket; however, does no get destroyed as it returns to earth. It can also be used to lunch satellired into space, retrieve them from space if any repairing os required and allow around 8 scientists to crryout experiments in space. The space shuttle does not get.
A flattened
B enlarged
C ruined
D developed
Mean residence time is equal to the space time, when
A The feed rate is measured at temperature and pressure in the reactor
B The temperature, pressure and the density of reaction mixture remains constant throughout the reactor
C There is no change in number of moles in gaseous reaction
D All of the above
The use of space time is preferred over the mean residence time in the design of a/an
A Batch reactor
B Ideal tubular-flow reactor
C Slurry reactor
D CSTR
When the density of the reaction mixture is constant in a chemical reaction, the ratio of the mean residence time to space time is
A > 1
B 1
C 0
If b equals 20% of b, then which one of the following equals 30% of c?
A 0.0006% of a
B 0.006% of a
C 0.06% of a
D 0.6% of a
a, b and c are positive integers. If b equals the square root of a, and if c equals the sum of a and b, which of the following could be the value of e?
A 21
B 30
C 45
D 331
2a equals 10 and--------a equals 5?
A eventually
B thus
C therefore
D thereby
16% of s equals t. 10% of t equals 40. What is the value of s-t?
A 24.00
B 21.00
C 30.00
D 22.00
If 25% of A equals 30% sof B and 24% of B equals 20% of C what is the ration of A to C?
A 1 :1
B 1 : 2
C 2 :1
D 4 : 3
Choose the most appropriate word : 2a equals 10 and ______ a equals 5.
A therefore
B eventually
C thus
D thereby

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