Free Online Practice mock Test 2 for GATE Chemical engineering. GATE syllabus and Previous Year Question Papers with Answers Free Download.

1. The number of emails received on six consecutive days is 11, 9, 18, 18, 4 and 15, respectively. What are the median and the mode for these data?
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2. For two rolls of a fair die, the probability of getting a 4 in the first roll and a number less than 4 in the second roll, up to 3 digits after the decimal point, is _________
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3. Which of the following statements are TRUE?
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P. The eigenvalues of a symmetric matrix are real

Q. The value of the determinant of an orthogonal matrix can only be +1

R. The transpose of a square matrix A has the same eigenvalues as those of A

S. The inverse of an 'n Ã— n' matrix exists if and only if the rank is less than 'n'

4. Evaluate ( Note: C is a constant of integration.)
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5. A gaseous system contains H_{2}, I_{2}, and HI, which participate in the gas-phase reaction
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2 HI <-----> H_{2} + I_{2}

At a state of reaction equilibrium, the number of thermodynamic degrees of freedom is _________

At a state of reaction equilibrium, the number of thermodynamic degrees of freedom is _________