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630
153
Choose the reaction, for which the standard enthalpy of reaction is equal to the standard enthalpy of formation:
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Related Questions
Suppose that
$p ,q andr$
are three non-coplanar vectors in
$R_{3}$
. Let the components of a vector
$s$
along
$p ,q andr$
be 4, 3 and 5, respectively. If the components of this vector
$s$
along
$(−p +q +r),(p −q +r)and(−p −q +r)$
are x, y and z, respectively, then the value of
$2x+y +z$
is
A debate club consists of 6 girls and 4 boys. A team of 4 members is to be selected from this club including the selection of a captain (from among these 4 members) for the team. If the team has to include at most one boy, then the number of ways of selecting the team is
Let
$f:R→R$
and
$g:R→R$
be two non-constant differentiable functions. If
$f_{prime}(x)=(e_{(f(x)−g(x))})g_{prime}(x)$
for all
$x∈R$
, and
$f(1)=g(2)=1$
, then which of the following statement(s) is (are) TRUE?
$f(2)<1−(g)_{e}2$
(b)
$f(2)>1−(g)_{e}2$
(c)
$g(1)>1−(g)_{e}2$
(d)
$g(1)<1−(g)_{e}2$
In a triangle the sum of two sides is x and the product of the same is y. If
$x_{2}−c_{2}=y$
where c is the third side. Determine the ration of the in-radius and circum-radius
Let
$f:(0,∞)R$
be given by
$f(x)=∫_{x1}te_{−(t+t1)}dt ,$
then (a)
$f(x)$
is monotonically increasing on
$[1,∞)$
(b)
$f(x)$
is monotonically decreasing on
$(0,1)$
(c)
$f(2_{x})$
is an odd function of
$x$
on
$R$
Circle(s) touching x-axis at a distance 3 from the origin and having an intercept of length
$27 $
on y-axis is (are)
Four person independently solve a certain problem correctly with probabilities
$21 ,43 ,41 ,81 ˙$
Then the probability that he problem is solve correctly by at least one of them is
$256235 $
b.
$25621 $
c.
$2563 $
d.
$256253 $
Let
$S$
be the circle in the
$xy$
-plane defined by the equation
$x_{2}+y_{2}=4.$
(For Ques. No 15 and 16)Let
$P$
be a point on the circle
$S$
with both coordinates being positive. Let the tangent to
$S$
at
$P$
intersect the coordinate axes at the points
$M$
and
$N$
. Then, the mid-point of the line segment
$MN$
must lie on the curve
$(x+y)_{2}=3xy$
(b)
$x_{2/3}+y_{2/3}=2_{4/3}$
(c)
$x_{2}+y_{2}=2xy$
(d)
$x_{2}+y_{2}=x_{2}y_{2}$
Related Questions
Suppose that
$p ,q andr$
are three non-coplanar vectors in
$R_{3}$
. Let the components of a vector
$s$
along
$p ,q andr$
be 4, 3 and 5, respectively. If the components of this vector
$s$
along
$(−p +q +r),(p −q +r)and(−p −q +r)$
are x, y and z, respectively, then the value of
$2x+y +z$
is
A debate club consists of 6 girls and 4 boys. A team of 4 members is to be selected from this club including the selection of a captain (from among these 4 members) for the team. If the team has to include at most one boy, then the number of ways of selecting the team is
Let
$f:R→R$
and
$g:R→R$
be two non-constant differentiable functions. If
$f_{prime}(x)=(e_{(f(x)−g(x))})g_{prime}(x)$
for all
$x∈R$
, and
$f(1)=g(2)=1$
, then which of the following statement(s) is (are) TRUE?
$f(2)<1−(g)_{e}2$
(b)
$f(2)>1−(g)_{e}2$
(c)
$g(1)>1−(g)_{e}2$
(d)
$g(1)<1−(g)_{e}2$
In a triangle the sum of two sides is x and the product of the same is y. If
$x_{2}−c_{2}=y$
where c is the third side. Determine the ration of the in-radius and circum-radius
Let
$f:(0,∞)R$
be given by
$f(x)=∫_{x1}te_{−(t+t1)}dt ,$
then (a)
$f(x)$
is monotonically increasing on
$[1,∞)$
(b)
$f(x)$
is monotonically decreasing on
$(0,1)$
(c)
$f(2_{x})$
is an odd function of
$x$
on
$R$
Circle(s) touching x-axis at a distance 3 from the origin and having an intercept of length
$27 $
on y-axis is (are)
Four person independently solve a certain problem correctly with probabilities
$21 ,43 ,41 ,81 ˙$
Then the probability that he problem is solve correctly by at least one of them is
$256235 $
b.
$25621 $
c.
$2563 $
d.
$256253 $
Let
$S$
be the circle in the
$xy$
-plane defined by the equation
$x_{2}+y_{2}=4.$
(For Ques. No 15 and 16)Let
$P$
be a point on the circle
$S$
with both coordinates being positive. Let the tangent to
$S$
at
$P$
intersect the coordinate axes at the points
$M$
and
$N$
. Then, the mid-point of the line segment
$MN$
must lie on the curve
$(x+y)_{2}=3xy$
(b)
$x_{2/3}+y_{2/3}=2_{4/3}$
(c)
$x_{2}+y_{2}=2xy$
(d)
$x_{2}+y_{2}=x_{2}y_{2}$
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